Rearrange the following 
four sentences in proper sequence to form a 
meaningful paragraph, then answer the 
questions given below. 
 1. The history of mankind is full of 
such fightings between 
communities, nations and people. 
 2. From the primitive weapon of 
warfare, man has advanced to the 
modern nuclear weapons. 
 
3. Ever since the dawn of civilisation 
man has been fighting with man. 
 
4. A modern war is scientific in 
character, but the effect is the same 
wiping human existence out of this 
earth.